Research on a multi-stage collaborative trading strategy for independent energy storage in the electricity market

Abstract

In the context of continuously increasing penetration of new energy sources， flexible resources such as energy storage play a crucial role in constructing a new power system. Based on the current status of the electricity market in Anhui Province， a multi-stage collaborative trading strategy for independent energy storage in the electricity market is proposed. Firstly， a medium-to-long-term transaction settlement model is introduced. Then， to address the uncertainty of electricity price and power forecasting， a day-ahead joint clearing model for electric energy and reserve ancillary services characterized by multiple probability scenarios is established. Furthermore， a separate trading model for intraday deviations is developed. Additionally， an analysis is conducted on the impact of energy storage aging costs on revenue. Finally， simulations are conducted with the objective of maximizing independent energy storage revenue， and the results indicate that the proposed mechanism can effectively enhance market returns for independent energy storage， providing insights for the development of the electricity market.

Keywords

• independent energy storage
• electricity market
• medium-to-long-term transaction
• electric energy market
• ancillary service market